Juniper Networks IDP75, IDP250, IDP8200, IDP 800 manual Router Mode, Advantages, Disadvantages

Chapter 8: Advanced Configuration

Router Mode

Figure 22 shows a sensor that is configured in bridge mode. Table 15 lists the advantages and disadvantages of bridge mode.

Figure 22: Router Mode

	Internet
Firewall			Hub or
		IP 2.2.2.1	Switch
	IP 192.168.0.2
	eth2
	IP 192.168.0.1
IDP Sensor	Forwarding Interface		Management
			Server
eth0 IP 2.2.2.7	eth3		IP 2.2.2.4
MGT Interface	IP 1.1.1.1
	Forwarding Interface
Hub or
Switch
			User Interface
			IP 2.2.2.5
Server1	Server2	Server3
IP 1.1.1.2	IP 1.1.1.3	IP 1.1.1.4
GW 1.1.1.1	GW 1.1.1.1	GW 1.1.1.1
	Protected Machines

Table 15: Advantages and Disadvantages of Router Mode

Advantages	Disadvantages
„ Reliably responds to and prevents attacks	„ Affects Layer 3 IP networks (routing tables)
„ Connects IP networks with different	„ Interfaces cannot be used in stealth mode.
address spaces	The sensor itself can be the target of attacks.

Advanced Deployment Modes „ 45